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1. Propose the reagents for the following synthesis. Show your work (retrosynthesis) for partial credit. (Hint - This s...
please show all arrows and state the reaction clearly so it’s easy for me to follow...
please show all arrows and
state the reaction clearly so it’s easy for me to follow and
understand.
1. Propose the reagents for the following synthesis. Show your work (retrosynthesis) for partial credit. (Hint - This should take you somewhere between 5 and 10 steps).
Part I: Organic Synthesis. Show as much work as possible to receive partial credit If required...
Part I: Organic Synthesis. Show as much work as possible to receive partial credit If required (30 points) 15. What is the product of these reactions? (10 points) 1) CHỊCH,MgBr 2) H0 3) H2SO4 (aq) heat 4) Hg(OAc), H,O-THF 5) NaBH, 16. Propose a sequence of chemical steps in the proper order to synthesize the desired product. (10 points) OH oleh OH 17. Propose a sequence of chemical steps in the proper order to synthesize the desired product. (10 points)...
Homework extra credit! #18. As promised in lecture... Propose a synthesis of this compound starting with...
Homework extra credit!
#18. As promised in lecture... Propose a synthesis of this compound starting with the ind se a synthesis of this compound starting with the indicated material. For full credit you need to write out all the steps, showing the reagents used for each reaction. each step. For reactions that produce both ortho and para isomers, assume that the par e both ortho and para isomers, assume that the para isomer is the major product. This is not...
Please show all of your steps. Thank you! 5 (20 pts). (a) Propose a reasonable synthesis,...
Please show all of your steps.
Thank you!
5 (20 pts). (a) Propose a reasonable synthesis, using indicated diketone as starting material. ini ² and any C4 or less starting materials (SMS) (any reagents are allowed) Hint: as a C3 SM use Br (b) Propose two syntheses, which will use two distinct methods for construction of the 6-membered ring: (1) Crossed-Claisen condensation and (2) Claisen condensation(s). must use this reagent plus any acyclic Cg or less BONUS (5 pts). In...
11. Propose a synthesis for each compound below. You must write in all necessary reactants, reagents,...
11. Propose a synthesis for each compound below. You must write in all necessary reactants, reagents, and solvents to receive full credit. Your starting materials must be 3 carbons or less. If you use an ionic or organometallic species, you must show how it was synthesized from a neutral, covalent species. Any species that adds carbon to your product must be synthesized from a molecule of 3 carbons or less. Only show the steps of your synthesis- do not put...
Please explain the mechanisms! 1. Propose a synthesis for each of the following problems starting with reagent shown and using any other organic or inorganic reagents allowed in each problem. Mu...
Please explain the mechanisms!
1. Propose a synthesis for each of the following problems starting with reagent shown and using any other organic or inorganic reagents allowed in each problem. Multiple steps are required. The number of steps you use does not matter. Reactions should give the desired product as a major product. For full credit show the product of each step (reaction). If you make use of organometallic reagents such as Grignard, Wittig, organolithium, organosodium, organocopper, etc. you must...
4. 1) LIAIH 2) H20 5. Propose an efficient synthesis for one of the following transformations....
4. 1) LIAIH 2) H20 5. Propose an efficient synthesis for one of the following transformations. Please circle the synthesis you are completing. More than one step will be required; be sure to number each step. It will be significantly easier to award partial credit if you show the intermediate product after each step. CN Br ОН OR OH + enantiomer
1. Provide a complete retrosynthesis and forward synthesis of the target molecule below from the given...
1. Provide a complete retrosynthesis and forward synthesis of the target molecule below from the given starting materials. All carbons of the target must be from the given starting materials. You may use any reagents you find necessary. You may include more than one step over a reaction arrow, but please no more than 3 steps at a time. Please show the key intermediates in your synthesis for partial credit. (10 bonus points) For full credit, include a retrosynthetic analysis,...
Question 4 (14 points) Propose a synthesis. You may use any reagents you wish. H2 Question...
Question 4 (14 points) Propose a synthesis. You may use any reagents you wish. H2 Question 5. (15 points). Perform a Robinson Annulation on the following reagents, showing full formal arrow-pushing. Be sure to end as a ketone! Clearly indicate your product in your answer. You may use any reagents you wish. NH2 Question 6. (20 points) Draw the following reagent in its most stable chair form. Show your process to ensure partial credit. CHO HO OH HO OH CH,OH
Propose a synthesis of the following derivative of diethyl malonate using reagents from the choices provided...
Propose a synthesis of the following derivative of diethyl malonate using reagents from the choices provided below. (From the choices provided, list the reagent(s) in order that will accomplish this transformation. No more than 4 steps are required. List your answer as a single letter (single-step transformation) or a series of letters (multi-step transformation) with no commas separating them.) Reagents available a. Eto Na g. CH2=CHCH=CHCH,Br b. CH3 CH2Br c. CH3 CH, CH, CH(CH3)Br d. (CH3)2 CHCH, CH,Br e. CH3...
please show all arrows and
state the reaction clearly so it’s easy for me to follow and
understand.
1. Propose the reagents for the following synthesis. Show your work (retrosynthesis) for partial credit. (Hint - This should take you somewhere between 5 and 10 steps).
Part I: Organic Synthesis. Show as much work as possible to receive partial credit If required (30 points) 15. What is the product of these reactions? (10 points) 1) CHỊCH,MgBr 2) H0 3) H2SO4 (aq) heat 4) Hg(OAc), H,O-THF 5) NaBH, 16. Propose a sequence of chemical steps in the proper order to synthesize the desired product. (10 points) OH oleh OH 17. Propose a sequence of chemical steps in the proper order to synthesize the desired product. (10 points)...
Homework extra credit!
#18. As promised in lecture... Propose a synthesis of this compound starting with the ind se a synthesis of this compound starting with the indicated material. For full credit you need to write out all the steps, showing the reagents used for each reaction. each step. For reactions that produce both ortho and para isomers, assume that the par e both ortho and para isomers, assume that the para isomer is the major product. This is not...
Please show all of your steps.
Thank you!
5 (20 pts). (a) Propose a reasonable synthesis, using indicated diketone as starting material. ini ² and any C4 or less starting materials (SMS) (any reagents are allowed) Hint: as a C3 SM use Br (b) Propose two syntheses, which will use two distinct methods for construction of the 6-membered ring: (1) Crossed-Claisen condensation and (2) Claisen condensation(s). must use this reagent plus any acyclic Cg or less BONUS (5 pts). In...
11. Propose a synthesis for each compound below. You must write in all necessary reactants, reagents, and solvents to receive full credit. Your starting materials must be 3 carbons or less. If you use an ionic or organometallic species, you must show how it was synthesized from a neutral, covalent species. Any species that adds carbon to your product must be synthesized from a molecule of 3 carbons or less. Only show the steps of your synthesis- do not put...
Please explain the mechanisms!
1. Propose a synthesis for each of the following problems starting with reagent shown and using any other organic or inorganic reagents allowed in each problem. Multiple steps are required. The number of steps you use does not matter. Reactions should give the desired product as a major product. For full credit show the product of each step (reaction). If you make use of organometallic reagents such as Grignard, Wittig, organolithium, organosodium, organocopper, etc. you must...
4. 1) LIAIH 2) H20 5. Propose an efficient synthesis for one of the following transformations. Please circle the synthesis you are completing. More than one step will be required; be sure to number each step. It will be significantly easier to award partial credit if you show the intermediate product after each step. CN Br ОН OR OH + enantiomer
1. Provide a complete retrosynthesis and forward synthesis of the target molecule below from the given starting materials. All carbons of the target must be from the given starting materials. You may use any reagents you find necessary. You may include more than one step over a reaction arrow, but please no more than 3 steps at a time. Please show the key intermediates in your synthesis for partial credit. (10 bonus points) For full credit, include a retrosynthetic analysis,...
Question 4 (14 points) Propose a synthesis. You may use any reagents you wish. H2 Question 5. (15 points). Perform a Robinson Annulation on the following reagents, showing full formal arrow-pushing. Be sure to end as a ketone! Clearly indicate your product in your answer. You may use any reagents you wish. NH2 Question 6. (20 points) Draw the following reagent in its most stable chair form. Show your process to ensure partial credit. CHO HO OH HO OH CH,OH
Propose a synthesis of the following derivative of diethyl malonate using reagents from the choices provided below. (From the choices provided, list the reagent(s) in order that will accomplish this transformation. No more than 4 steps are required. List your answer as a single letter (single-step transformation) or a series of letters (multi-step transformation) with no commas separating them.) Reagents available a. Eto Na g. CH2=CHCH=CHCH,Br b. CH3 CH2Br c. CH3 CH, CH, CH(CH3)Br d. (CH3)2 CHCH, CH,Br e. CH3...
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